Question
Question: Arrange the following hydrogen halides in order in their decreasing reactivity with propene....
Arrange the following hydrogen halides in order in their decreasing reactivity with propene.
A
HCl > HBr > HI
B
HBr > HI > HCl
C
HI > HBr > HCl
D
HCl > HI > HBr
Answer
HI > HBr > HCl
Explanation
Solution
: The order of decreasing stability of the hydrogen halides is HI > HBr > HCl. As the size of halogen increase, the strength of H – X bond decreases and hence, reactivity increase.